Problem with Tasco is I am of the understanding that they never made any scopes. They just rebranded various optics from China and Japan (and probably a few others) so the scopes vary greatly in quality from model to model.
I've probably had about 5 or 6 Tasco scopes. I had a World Class 6x24 that was a special production run for Midway a while back. Had the cool tactical elevation control but not for windage. It wasn't a bad scope. Up to about 18x is was pretty bright. I probably put 500 rounds of 308 through a 12FV and another 200 rounds of 7mm-08 through a 10FP with that scope mounted and never had a problem. Gave it to a friend that still has it mounted on a 12FVSS in 223. Not crystal clear, but it works. You can't quite see .22 holes at 100 yards.
I've also had a MAGIV scope that was 6-24x40 and a similar scope that had a mil dot reticle that was listed as a 6-24x42. Never had a problem with either of those either. I kinda lost track as I tended to move scopes from rifle to rifle back then. I'd imagine they were all on a 223, a 243 and a 308 at some point. The MAGIV was bought used from a guy that had it on a Winchester heavy barrel in 7mm Rem Mag. Put 40 rounds through it before I got it.
I also had a Pronghorn on a 10/22 that broke the reticle before I'd put 50 rounds through it. I replaced it with a cheap Simmons that was on there for about 5,000 rounds without a problem.
Take this for what it's worth. They vary a lot. Some folks report great performance and reliability for the price, others claim they're all junk. If you need a scope for less than $100, I'd go with a BSA. I personally would not consider paying more than about $70 for a Tasco unless it was their Super Sniper scope. I'd get BSAs at the lowest price point, Busnhell Banners at the $80-$120 price point. And anything above that point, well, Leupold VariX Is start at about $180-$200 for the 2-7x or 3-9x. A little above that and I'd get the Weaver Grand Slam 3-10x for $230. Excellent scope for the money. As good as VariX III for VariX II prices. Above that, there's Swarovski, Zeiss and Kahles 1" models.